FIG. 2.

Tree based on the unweighted-pair group method using average linkages for the F. psychrophilum phage isolates (“#” is followed by FpV number) based on their host ranges of infectivity against the 28 bacterial isolates. The data in Fig. 1 were scored and converted to pairwise distances by using the Dice similarity coefficient. Groupings of phages according to genome size and morphology are inserted to facilitate comparison.